博客
关于我
利用字节流拷贝文件
阅读量:680 次
发布时间:2019-03-16

本文共 1544 字,大约阅读时间需要 5 分钟。

    public class FileCopy {        public static void main(String[] args) throws IOException {            // 输入流            FileInputStream fileInputStream = new FileInputStream(new File("D:\\abc.txt"));            // 输出流            FileOutputStream fileOutputStream = new FileOutputStream("D:\\abc(字节方式).txt");            // 缓冲区(每次读10字节)            byte[] bytes = new byte[10];            // 写到文件中            int length;            while ((length = fileInputStream.read(bytes)) != -1) {                fileOutputStream.write(bytes, 0, length);            }            // 关闭流            fileInputStream.close();            fileOutputStream.close();        }    

文件字节复制示例

以下代码示例演示了如何使用Java进行文件字节复制操作。该方法通过读取输入流并写入输出流的方式实现文件内容的复制。

    public class FileCopy {        public static void main(String[] args) throws IOException {            // 创建输入流和输出流            FileInputStream inputStream = new FileInputStream("D:\\abc.txt");            FileOutputStream outputStream = new FileOutputStream("D:\\abc(字节方式).txt");            // 创建缓冲区            byte[] buffer = new byte[10];            int readLength;            while ((readLength = inputStream.read(buffer)) != -1) {                outputStream.write(buffer, 0, readLength);            }            // 关闭流            inputStream.close();            outputStream.close();        }    

代码解释: - 首先创建了一个字节输入流(FileInputStream)和一个字节输出流(FileOutputStream)。 - 使用了10字节的缓冲区来读取输入流数据。 - 在循环中读取输入流的内容,并将读取到的字节写入输出流。 - 当输入流结束时,循环结束并关闭两个流。

转载地址:http://abrqz.baihongyu.com/

你可能感兴趣的文章
No Datastore Session bound to thread, and configuration does not allow creation of non-transactional
查看>>
No fallbackFactory instance of type class com.ruoyi---SpringCloud Alibaba_若依微服务框架改造---工作笔记005
查看>>
No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalanc
查看>>
No mapping found for HTTP request with URI [/...] in DispatcherServlet with name ...的解决方法
查看>>
No mapping found for HTTP request with URI [/logout.do] in DispatcherServlet with name 'springmvc'
查看>>
No module named 'crispy_forms'等使用pycharm开发
查看>>
No module named cv2
查看>>
No module named tensorboard.main在安装tensorboardX的时候遇到的问题
查看>>
No module named ‘MySQLdb‘错误解决No module named ‘MySQLdb‘错误解决
查看>>
No new migrations found. Your system is up-to-date.
查看>>
No qualifying bean of type XXX found for dependency XXX.
查看>>
No qualifying bean of type ‘com.netflix.discovery.AbstractDiscoveryClientOptionalArgs<?>‘ available
查看>>
No resource identifier found for attribute 'srcCompat' in package的解决办法
查看>>
no session found for current thread
查看>>
No toolchains found in the NDK toolchains folder for ABI with prefix: mips64el-linux-android
查看>>
NO.23 ZenTaoPHP目录结构
查看>>
no1
查看>>
NO32 网络层次及OSI7层模型--TCP三次握手四次断开--子网划分
查看>>
NOAA(美国海洋和大气管理局)气象数据获取与POI点数据获取
查看>>
NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
查看>>